An AC source of RMS voltage 20 V with internal impedance Z, = (1+2j) Q feeds a load of impedance Z, = (7+4 j) Q in the figure below. The reactive power consumed by the load is Z, = (1+2j)Q 2020° v Z, = (7 +4 j) 2

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Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.